By the time goes and varies policy appears,the market of nootrooics keep hot but has little structural adjustment than before.At the early time of 2014,compound notropics as racetams,noopept and tianeptine,etc,these synthetic with high purity content nootropics sell popular online from UK and US.But they are stopped after the British banned policy of all most all effective compound nootropics ever since 2016.At the same time,other countries are still in grey and regulated situation of compound nootropics.The America FDA are steict on importing of prescription raw materials,some nootropics as racetams are related to prescription class.However it is still easy to buy most popular nootropics online.On the other hand,nature nootropics are getting more and more having market now,such as Bacopa Monnieri Extract, Ginkgo Biloba extract, Ginseng Extract ,these are quite classic herbs which fucntion well for brian health,and has been used for most branded supplement of brain health.
It is hard to evaluate the best nootropics ingredients because the human bodies of differentiation,only after you have tried you will find the best one for one.Compund nootropics are pure with strong efficacy while you may also infulence by its side effect.Nature nootropics are nature and some can be regard as food supplement with slow and little efficacy,but also less side effect.It will just depend on your demand.